From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
To: netdev@vger.kernel.org
Cc: "Kumar Kartikeya Dwivedi" <memxor@gmail.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
"Jesper Dangaard Brouer" <brouer@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Martin KaFai Lau" <kafai@fb.com>,
bpf@vger.kernel.org
Subject: [PATCH net-next v3 0/5] Generic XDP improvements
Date: Wed, 23 Jun 2021 01:58:30 +0530 [thread overview]
Message-ID: <20210622202835.1151230-1-memxor@gmail.com> (raw)
This small series makes some improvements to generic XDP mode and brings it
closer to native XDP. Patch 1 splits out generic XDP processing into reusable
parts, patch 2 adds pointer friendly wrappers for bitops (not have to cast back
and forth the address of local pointer to unsigned long *), patch 3 implements
generic cpumap support (details in commit) and patch 4 allows devmap bpf prog
execution before generic_xdp_tx is called.
Patch 5 just updates a couple of selftests to adapt to changes in behavior (in
that specifying devmap/cpumap prog fd in generic mode is now allowed).
Changelog:
----------
v2 -> v3
v2: https://lore.kernel.org/bpf/20210622195527.1110497-1-memxor@gmail.com
* list_for_each_entry -> list_for_each_entry_safe (due to deletion of skb)
v1 -> v2
v1: https://lore.kernel.org/bpf/20210620233200.855534-1-memxor@gmail.com
* Move __ptr_{set,clear,test}_bit to bitops.h (Toke)
Also changed argument order to match the bit op they wrap.
* Remove map value size checking functions for cpumap/devmap (Toke)
* Rework prog run for skb in cpu_map_kthread_run (Toke)
* Set skb->dev to dst->dev after devmap prog has run
* Don't set xdp rxq that will be overwritten in cpumap prog run
Kumar Kartikeya Dwivedi (5):
net: core: split out code to run generic XDP prog
bitops: add non-atomic bitops for pointers
bpf: cpumap: implement generic cpumap
bpf: devmap: implement devmap prog execution for generic XDP
bpf: update XDP selftests to not fail with generic XDP
include/linux/bitops.h | 19 +++
include/linux/bpf.h | 10 +-
include/linux/netdevice.h | 2 +
include/linux/skbuff.h | 10 +-
include/linux/typecheck.h | 10 ++
kernel/bpf/cpumap.c | 115 +++++++++++++++---
kernel/bpf/devmap.c | 49 ++++++--
net/core/dev.c | 103 ++++++++--------
net/core/filter.c | 6 +-
.../bpf/prog_tests/xdp_cpumap_attach.c | 4 +-
.../bpf/prog_tests/xdp_devmap_attach.c | 4 +-
11 files changed, 241 insertions(+), 91 deletions(-)
--
2.31.1
next reply other threads:[~2021-06-22 20:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-22 20:28 Kumar Kartikeya Dwivedi [this message]
2021-06-22 20:28 ` [PATCH net-next v3 1/5] net: core: split out code to run generic XDP prog Kumar Kartikeya Dwivedi
2021-06-22 20:28 ` [PATCH net-next v3 2/5] bitops: add non-atomic bitops for pointers Kumar Kartikeya Dwivedi
2021-06-22 21:52 ` Toke Høiland-Jørgensen
2021-06-22 22:10 ` Kumar Kartikeya Dwivedi
2021-06-22 22:33 ` Toke Høiland-Jørgensen
2021-06-22 23:16 ` Kumar Kartikeya Dwivedi
2021-06-23 11:09 ` Toke Høiland-Jørgensen
2021-06-24 13:08 ` David Laight
2021-06-22 20:28 ` [PATCH net-next v3 3/5] bpf: cpumap: implement generic cpumap Kumar Kartikeya Dwivedi
2021-06-22 20:28 ` [PATCH net-next v3 4/5] bpf: devmap: implement devmap prog execution for generic XDP Kumar Kartikeya Dwivedi
2021-06-22 20:28 ` [PATCH net-next v3 5/5] bpf: update XDP selftests to not fail with " Kumar Kartikeya Dwivedi
2021-06-23 11:17 ` Toke Høiland-Jørgensen
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